Celebrating our history. building the future.

Watch our Anniversary Video!

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Transmission

Any configuration. Any voltage. Any terrain.

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Irby is Looking for A Few Good (Line)Men

We’re hiring! Take a look at our careers page for more information.

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Emergency Restoration

Hurricane season is here and we are ready!

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Bozeman Road Distribution Work

Featured Distribution Project

Irby Construction was awarded the Bozeman Road Project in May of 2017 by Entergy Mississippi. The project scope consisted of adding three new circuits out of the existing Bozeman Rd Substation in Madison, MS due to a new transformer addition.

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Port St. Joe to Callaway 230kV Rebuild

Emergency Storm Restoration

Hurricane Michael made landfall on October 10th, 2018 near Mexico Beach, Florida. Duke Energy’s 230kV 34-mile PX line from Port St. Joe to Callaway was damaged beyond repair.

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IRBY CONSTRUCTION COMPANY builds power infrastructure on a turnkey basis. As a premier transmission construction company, we have built high-voltage power line projects that span the entire United States— from the pacific coast to the eastern seaboard. Our work has even taken us to other countries across the globe. Irby also constructs and connects substations and distribution systems. So, our scope of services covers power delivery systems every step of the way—from generation, down the line and into homes and businesses. 

Transmission
Telecommunications
Distribution
Outdoor Lighting
Substation
Renewables
Data Centers
Foundation
BESS
Emergency Restoration

We’re Like Family at Irby

We started as a family business and have carried that culture forward. There’s a pride that comes with working here and it shows in our work. Irby Construction Company’s extraordinary record of success can be attributed to our people who are among the most respected, experienced and talented in the industry. More than a company name that has been around for generations, Irby brings to the table a team of people who have been in this business for decades.

Want to learn more about us? Watch the video here or on Vimeo.

Irby Construction: Proud Past, Clear Future from Irby Construction Company on Vimeo.

FEATURED PROJECTS

Hurricanes Helene & Milton Emergency Response

Hurricanes Helene & Milton Emergency Response

September 4, 2025
Destin Resiliency and Rebuild Projects

Destin Resiliency and Rebuild Projects

September 4, 2025
SMT Houston IV BESS Project

SMT Houston IV BESS Project

September 4, 2025
Duke Energy – Mosaic APW AF Line

Duke Energy – Mosaic APW AF Line

September 3, 2025
Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

Jefferson Davis Electric Cooperative 230KV T-Line System Loop Upgrade

September 3, 2025
Storm Damage Assessment After Hurricane Ian

Storm Damage Assessment After Hurricane Ian

August 11, 2023
Patterson – S. Nashville 138kV Transmission Line Rebuild Project

Patterson – S. Nashville 138kV Transmission Line Rebuild Project

October 12, 2022
Entergy Harahan-Avondale

Entergy Harahan-Avondale

July 20, 2022
FPL EVolution HUB

FPL EVolution HUB

February 10, 2022
New England Clean Energy Connect Transmission Line

New England Clean Energy Connect Transmission Line

February 1, 2022
Sunshine Gateway Battery Energy Storage Center

Sunshine Gateway Battery Energy Storage Center

August 27, 2021
Manatee Battery Energy Storage Center

Manatee Battery Energy Storage Center

June 22, 2021

WATTS IN THE NEWS

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CAREERS

EMPLOYEE INFO

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WORK WITH US

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CONTACT HR DIRECT:

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CONTACT US:

318 Old Highway 49 South
Richland, Mississippi 39218-9449

Phone: 601-709-4729
Email: [email protected]

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Irby Construction Company

Irby Construction Company

18 hours ago

Irby Construction Company
RESPOND.The second theme of Construction Safety Week is all about taking action by responding.Spotting hazards is only step one, while putting the right controls in place before work begins is what keeps crews safe. A structured approach helps teams evaluate risks and determine how to remove or reduce them through smarter planning and jobsite controls.When hazard recognition becomes real, preventive response and action, we protect our people, our communities, and every phase of the work. 🦺Read more here: www.constructionsafetyweek.com/plan-for-safety-week/safety-week-2026/#IrbyConstruction #AbsolutePerformance #wearequanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

2 days ago

Irby Construction Company
RECOGNIZE. Construction Safety Week starts with one priority: Sharpening how we recognize and identify risk.Crews face serious hazards every day. But too often, not all of them are caught in pre-task planning. Using a clear, shared approach to spot high-energy hazards and life-threatening risks earlier can make a real difference in the field.When teams are aligned on what to recognize in the field, awareness improves, response is faster, and incidents can be prevented.Same goal. Same focus. Safer jobsites. 🦺#IrbyConstruction #AbsolutePerformance #wearequanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

3 days ago

Irby Construction Company
RECOGNIZE • RESPOND • RESPECTThese are the tenets of Construction Safety Week 2026. At Irby Construction Company, they're not just words on a banner; they're built into how we work.Construction is one of the largest industries in the world. The work is hard, the stakes are high, and safety is never optional. It's the foundation everything else is built on.All week, we'll be highlighting the themes of Construction Safety Week 2026. Because at the end of the day, every crew member goes home safe. That's the standard, and that's the mission.Stay tuned, and learn more here: www.constructionsafetyweek.com/plan-for-safety-week/safety-week-2026/ #IrbyConstruction #AbsolutePerformance #wearequanta #ConstructionSafetyWeek #CSW Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

6 days ago

Irby Construction Company
Get to Know David Ford!David is a Pre-Construction Field Technician based in Florida and has been an integral part of the Irby Construction team for over four years.When reflecting on his time at Irby, David said that “...being part of something bigger than myself and working with a great team are important to me.”We couldn't agree more, David, and we're lucky to have you on board.Click to view David's full Employee Spotlight: content.app-us1.com/WpZJ1/2026/04/28/72eb09ea-d7c8-45e0-9c98-ce177678e3b1.pdf#IrbyConstruction #AbsolutePerformance #WeAreQuanta #EmployeeSpotlight Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

7 days ago

Irby Construction Company
This month's top photo belongs to Brian Favre, Regional Safety Manager, who brought Job 3737 to life with a truly beautiful shot.Think you’ve got the next winning shot? Here’s how to enter:Snap it – On the job, in the office, or wherever Irby takes you (safely)Send it – Email your photo(s) to [email protected] with employee names, job number, location, and any relevant details.Win it – If your photo is selected, you’ll score an Amazon gift card.#IrbyConstruction #AbsolutePerformance #WeAreQuanta #IrbyPicsContest Quanta Services, Inc. ... See MoreSee Less

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Irby Construction Company

1 week ago

Irby Construction Company
Irby Construction Company is hiring a Heavy Haul Truck Driver in Eatonton, GA. This role requires a valid CDL and lowboy hauling experience. Applicants must be legally authorized to work in the United States. No employer sponsorship is offered for this position. To learn more about the position and to apply, visit: www.irbyconstruction.com/careers/ ... See MoreSee Less

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Irby Construction Company is a wholly-owned subsidiary of Quanta Services, Inc. (NYSE: PWR).